Closure



b- 3 L. STEVENSON I ,9

CLOSURE Filed Sept. 12, 1935 3 Sheets-Sheet 1 joycij JZeW'emS W fimmihInventor flllomey Feb. 12, 1935. B. STEVENSON CLOSURE Filed Sept. 12,1933 5 Sheets-Sheet 2 gy. //4 /Z /4- lmiianfor 0 5 m w t M W 0 j.

Filed Sept. 12, 1933 5 Sheets-Sheet 3 I I I- 1 I F Inventor II II n I Z3fiayazlrji'ezrerzsom 1 1 I '7 9 l 1/ Age p m Patented Feb. 12,

UNITED STATES PATENT OFFICE This invention appertains to new and usefulimprovements in closures and more particularly to a novel form of capfor collapsible paint or paste tubes.- V

The principalobject of the present invention .is to provide a sharpopening closure for a collapsible tube which will automatically openwhen subjected to the force of the contents of-the tube under pressure.Other important objects and'advantages of the invention 'will becomeapparent to the reader of the following specification.

In the drawings:

Figure 1 represents a side elevational viewof the improved cap.

Figure 2 represents a vertical-seetional view through the cap.

Figure arepresents a top plan view of the cap. Figure 4 represents afragmentary detailed sectionalview taken substantially on line ofFigure-3. L

"Figure5 represents a vertical fragmentary sectional view through amodification of the invention. v

- Figure 6 represents a fragmentary vertical sec- :ioual view throughthe third form of the inven- 1on. r p

Figure '7 represents a fragmentary vertical sectional view. through thefourth' form of the invention. f v r I Figures represents a verticalsectional view through the fifth'form-of the invention.

Figure 9 represents a top plan view of the form of the "inventionshownin Figure 8. Figure 10 represents a side elevational view of theform 'of the invention shown in Figure 8.-

Referring to the draggngs wherein like numerals designate like pa it canbe seen in Fig.- ures 1,2 and 3 that numeral 5 generally refers to acollapsible paint or paste tube having a threaded neck 6; Numeral "lgenerally'refers to I the novel cap structure which is provided with a'7 these sidewalls '11 tapering upwardly as shown.

tubular portion 8 having a threaded end portion 9 engageable withtheneck 6 of the tube 5. The

upper portion of the cap is formed to provide a vertical back wall 10,vertical side walls 11-11,

in Figure 2. The front wall 12 is inclined toward the back wall 10, in adirection to meet the upper end -of the said back wall 10. This frontwall 12* is spaced at its upper end from the upper end-of ,the back wall10 while the spring plate 13 retained against the front wall 12 byinturned lug 14 on the side walls 11 extends over the space between theupper end of the wall 12and the at the lower. edge of upper end of thewall 10 to normally close the same and to tensionally engage the upperend of the wall 10 as in the manner substantially shown 7 in Figure 2.Obviously, the spring plate 13 functions snugly between the side walls11- -11 and 5 when the contents of the tube 5 are placed un er pressurewhen the tube being squeezed in the hand, the pressure of the contents'againstthespring plate '13 will flex the same so as to permit some ofthe 2 the-upper end of the spring plate 13 and the upper edge of theback wall 10.

The form of the invention shown in Figure 5 is the same as'that shown:in Figure 1 with the ex-. ception instead of the lugs 14, an upturnedflange 15 14a is provided 1 at the lower end of the front wall 12a andbetween this flange 14aand the front wall 12a the lower end of the sprinplate.

13 is engaged and retained.

.The form of the invention consists of a solid head So formed with apasobviously sageway 18 through which paste or paint can be forced fromthe tube -5 to which it can be suitably attached. The upper portion ofthe. head 2 8a is inclined: as at 19. and upstanding flanges 11a11a areprovided at each side of this inclined portion 19. 'Numeral 20represents a rib the inclined portion 19 of the head while numeral 141)represents a cross pin between the lowernd portion of the flanges 11aas'rshownin Figure '1. Numeral 13a represents the spring plate whichat'its lower end,-is

provided with a transverse corrugatidn' 13b which can be sprungbetweenthe pin 14b and the rib 20. In this position the plate 13a isanchoredwith its upper end closing the upper end of the passageway 18.

The form of the invention shown in Figure 6 is similar to. that shown.in Figure 7 in that the head. at issolid and'provided-with the passage-4 way18a. The top portion of this head 8b is provided with an inclinedsurface 19a against which the spring plate can bear so as to close theupper edge of the. passageway 18a.- NumeraliflOa represents an upturnedname at the-lower end 45 of the inclined portion 19a, this flange. beingspaced from the surface toaiford a pocket within which can engage theback turned portion 13d of the platelsc, this portion 13d tensionallyengaging the end of the flange 2041 so as not to permit displacement ofthe plate 130, The plate 13c operates snugly between'the side flangeslib-+111);

Figure 8 shows the invention and same to expel between shownin Figure 720' 30 I a discharge opening through the extremity of is disposed over'a discharge Opening said oblique endwith lindrical portion 8c havingits upper portion cut ofl on an inclined plate. The body 191) extendsinwardly of the side wall of the cap and has its .opposed side portionof the cap 80. The lower 13c abuts the transverse conthe flanges 11d andan elon- 22 at one end is secured as at the cap 80 while the other endthe upper portion of the cap and disposed inwardly to tensionally bearagainst the intermediate portion ofv the plate 1.3e thus tensionallyurging the plate against the projection 19b and the uppermost portion ofthe side wall of the cap. a

While the foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit orscope of the invention as claimed hereinafter.

Having thus described my invention, what I claim as new is:

1. In combination, a container having a dis charge neck, said neck beingcut off "obliquely, said oblique end being provided with a pair ofparallel side flanges, said discharge neck having end of the platetinuation lle of gated leaf spring 23 to the side of said oblique endwith the remaining portion of the oblique end defining a rest, and atension plate anchored at one end and adapted to fit snugly between saidflanges and against said rest to normally close said opening.

2. In combination, a container having a discharge neck, said neck beingcut off obliquely, said oblique end being provided with a pair ofparallel side flanges, said discharge neck having a discharge openingthrough the extremity of said oblique end the oblique end plate anchoreddefining a rest, and a tension to normally close said opening,constructed of sheet metal and havingfa portion at the oblique endfolded upon itself to provide a pocket for snugly receiving one end ofthe said tension plate. V

, 3. In combination, a container having a discharge neck, said neckbeing cut ofi obliquely, said oblique end being provided with a pair ofparallel side flanges, said discharge neck'having througlf the,extremity of v the remaining portion of the. oblique. end defining arest, and a tension plate anchored at one end and adapted to fit snuglybetween said flanges and against said rest said neck being with theremaining portion of at one end and adapted to fit snugly between saidflanges and against said rest to normally close said opening, said platebeing of spring material and havingone end anchored to the oblique endof the neck.

4. In combination, a container having a discharge meek, said neck beingcut' off obliquely, said oblique end being provided with a pair ofparallel side flanges, said discharge neck'having a discharge openingthrough the extremity of said oblique end with the remaining portion ofthe oblique end defining a rest, and a tension plate anchored at one endand" adapted to flt snugly between said flanges and against said rest tonormally close 'said opening, said neck being provided with a pocket atthe innermost end portion of the rest, said tension plate being providedwith a backwardly disposed spring portion to engage the top wall of thepocket when the same is inserted into the pocket of the neck to maintainthe plate propersnu'gly against the oblique end. I a

5. In combination, a container having a discharge neck, said. neck beingcut off obliquely,

said oblique end being provided with a pair of parallel side flanges,said discharge neck having a discharge opening through the extremity ofsaid oblique end with the remaining portion of the oblique end anchoredat one end and adapted to fit snugly between said flanges and againstsaid rest to normally close said opening, and an arcuate-- shapedspringelement having one end secured to the side of the neck and itsopposite end eng ing against an intermediate portion of the tensionplate to tensionally retain the same against the said rest. I

6. In combination; a container having a discharge neck, said neck beingcut ofi obliquely, said oblique end being provided with a pair ofparallel side flanges, said discharge neck have ing a dischargeopeningthrough the extremity of said oblique end with the remainingportion of the oblique end defining a rest, and a tension plate anchoredat one end and adapted to fit snugly between said flanges and againstsaid rest to normally close said opening, said "flanges being providedwith inwardly disposed members for engaging against the outer side ofthe tension plate and retaining the same snugly against the defining arest,a tension plate substantially closing said discharge end to definea rest and a relatively small discharge opening, and a sprin stantialdistance beyond said rest BOYD LII-STEVENSON.

v closure plate adapted to exert its tension against said rest and toproject a sub- 2

